ALAMEDA CREEK - NILES (NILC1)
Latitude: 37.59º NLongitude: 121.96º WElevation: 86 FeetForecast Type: Unofficial Location
Location: Alameda County in CaliforniaBulletin Group: Central CoastRiver Group: South Bay
Issuance Time: Feb 26 2026 at 1:37 PM PSTNext Issuance: Feb 27 2026 at 9:00 AM PST
Action/Monitor: N/A Minor Flood: 9.0 FeetModerate Flood: 10.5 FeetMajor Flood: N/A

# Tabular Observed and Forecast Hydrograph Information
#
# Location: Alameda Creek - Niles (NILC1)
#
# File Generation Time:  02/26/2026 at 01:39 PM PST
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  02/21/2026 at 01:00 PM PST
# Maximum Observed Stage:                       3.91 Feet
# Maximum Observed Flow:                        275 cfs
#
# Earliest Date & Time of Maximum Forecast:     02/26/2026 at 02:00 PM PST
# Maximum Forecast Stage:                       3.40 Feet
# Maximum Forecast Flow:                        98 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  02/21/2026 01 PM PST            3.91            275                        Normal
  02/21/2026 02 PM PST            3.90            270         -              Normal
  02/21/2026 03 PM PST            3.88            261         -              Normal
  02/21/2026 04 PM PST            3.86            252         -              Normal
  02/21/2026 05 PM PST            3.85            248         -              Normal
  02/21/2026 06 PM PST            3.84            243         -              Normal
  02/21/2026 07 PM PST            3.83            239         -              Normal
  02/21/2026 08 PM PST            3.82            235         -              Normal
  02/21/2026 09 PM PST            3.80            226         -              Normal
  02/21/2026 10 PM PST            3.79            222         -              Normal
  02/21/2026 11 PM PST            3.78            218         -              Normal
  02/22/2026 12 AM PST            3.78            218         0              Normal
  02/22/2026 01 AM PST            3.77            214         -              Normal
  02/22/2026 02 AM PST            3.77            214         0              Normal
  02/22/2026 03 AM PST            3.77            214         0              Normal
  02/22/2026 04 AM PST            3.77            214         0              Normal
  02/22/2026 05 AM PST            3.77            214         0              Normal
  02/22/2026 06 AM PST            3.76            210         -              Normal
  02/22/2026 07 AM PST            3.75            206         -              Normal
  02/22/2026 08 AM PST            3.74            203         -              Normal
  02/22/2026 09 AM PST            3.73            199         -              Normal
  02/22/2026 10 AM PST            3.73            199         0              Normal
  02/22/2026 11 AM PST            3.72            195         -              Normal
  02/22/2026 12 PM PST            3.71            191         -              Normal
  02/22/2026 01 PM PST            3.70            188         -              Normal
  02/22/2026 02 PM PST            3.70            188         0              Normal
  02/22/2026 03 PM PST            3.69            184         -              Normal
  02/22/2026 04 PM PST            3.68            181         -              Normal
  02/22/2026 05 PM PST            3.67            177         -              Normal
  02/22/2026 06 PM PST            3.66            174         -              Normal
  02/22/2026 07 PM PST            3.65            170         -              Normal
  02/22/2026 08 PM PST            3.64            167         -              Normal
  02/22/2026 09 PM PST            3.63            163         -              Normal
  02/22/2026 10 PM PST            3.63            163         0              Normal
  02/22/2026 11 PM PST            3.63            163         0              Normal
  02/23/2026 12 AM PST            3.62            160         -              Normal
  02/23/2026 01 AM PST            3.62            160         0              Normal
  02/23/2026 02 AM PST            3.62            160         0              Normal
  02/23/2026 03 AM PST            3.61            157         -              Normal
  02/23/2026 04 AM PST            3.61            157         0              Normal
  02/23/2026 05 AM PST            3.60            154         -              Normal
  02/23/2026 06 AM PST            3.61            157         +              Normal
  02/23/2026 07 AM PST            3.60            154         -              Normal
  02/23/2026 08 AM PST            3.60            154         0              Normal
  02/23/2026 09 AM PST            3.60            154         0              Normal
  02/23/2026 10 AM PST            3.60            154         0              Normal
  02/23/2026 11 AM PST            3.59            150         -              Normal
  02/23/2026 12 PM PST            3.58            147         -              Normal
  02/23/2026 01 PM PST            3.57            144         -              Normal
  02/23/2026 02 PM PST            3.60            154         +              Normal
  02/23/2026 03 PM PST            3.61            157         +              Normal
  02/23/2026 04 PM PST            3.60            154         -              Normal
  02/23/2026 05 PM PST            3.59            150         -              Normal
  02/23/2026 06 PM PST            3.59            150         0              Normal
  02/23/2026 07 PM PST            3.58            147         -              Normal
  02/23/2026 08 PM PST            3.57            144         -              Normal
  02/23/2026 09 PM PST            3.56            141         -              Normal
  02/23/2026 10 PM PST            3.56            141         0              Normal
  02/23/2026 11 PM PST            3.55            138         -              Normal
  02/24/2026 12 AM PST            3.55            138         0              Normal
  02/24/2026 01 AM PST            3.55            138         0              Normal
  02/24/2026 02 AM PST            3.55            138         0              Normal
  02/24/2026 03 AM PST            3.54            135         -              Normal
  02/24/2026 04 AM PST            3.54            135         0              Normal
  02/24/2026 05 AM PST            3.54            135         0              Normal
  02/24/2026 06 AM PST            3.53            132         -              Normal
  02/24/2026 07 AM PST            3.53            132         0              Normal
  02/24/2026 08 AM PST            3.53            132         0              Normal
  02/24/2026 09 AM PST            3.52            129         -              Normal
  02/24/2026 10 AM PST            3.53            132         +              Normal
  02/24/2026 11 AM PST            3.53            132         0              Normal
  02/24/2026 12 PM PST            3.53            132         0              Normal
  02/24/2026 01 PM PST            3.52            129         -              Normal
  02/24/2026 02 PM PST            3.52            129         0              Normal
  02/24/2026 03 PM PST            3.52            129         0              Normal
  02/24/2026 04 PM PST            3.52            129         0              Normal
  02/24/2026 05 PM PST            3.51            126         -              Normal
  02/24/2026 06 PM PST            3.51            126         0              Normal
  02/24/2026 07 PM PST            3.50            124         -              Normal
  02/24/2026 08 PM PST            3.50            124         0              Normal
  02/24/2026 09 PM PST            3.49            121         -              Normal
  02/24/2026 10 PM PST            3.48            118         -              Normal
  02/24/2026 11 PM PST            3.48            118         0              Normal
  02/25/2026 12 AM PST            3.48            118         0              Normal
  02/25/2026 01 AM PST            3.48            118         0              Normal
  02/25/2026 02 AM PST            3.48            118         0              Normal
  02/25/2026 03 AM PST            3.47            115         -              Normal
  02/25/2026 04 AM PST            3.47            115         0              Normal
  02/25/2026 05 AM PST            3.47            115         0              Normal
  02/25/2026 06 AM PST            3.47            115         0              Normal
  02/25/2026 07 AM PST            3.47            115         0              Normal
  02/25/2026 08 AM PST            3.46            113         -              Normal
  02/25/2026 09 AM PST            3.46            113         0              Normal
  02/25/2026 10 AM PST            3.47            115         +              Normal
  02/25/2026 11 AM PST            3.47            115         0              Normal
  02/25/2026 12 PM PST            3.47            115         0              Normal
  02/25/2026 01 PM PST            3.47            115         0              Normal
  02/25/2026 02 PM PST            3.51            126         +              Normal
  02/25/2026 03 PM PST            3.49            121         -              Normal
  02/25/2026 04 PM PST            3.49            121         0              Normal
  02/25/2026 05 PM PST            3.49            121         0              Normal
  02/25/2026 06 PM PST            3.46            113         -              Normal
  02/25/2026 07 PM PST            3.46            113         0              Normal
  02/25/2026 08 PM PST            3.45            110         -              Normal
  02/25/2026 09 PM PST            3.45            110         0              Normal
  02/25/2026 10 PM PST            3.44            108         -              Normal
  02/25/2026 11 PM PST            3.43            105         -              Normal
  02/26/2026 12 AM PST            3.43            105         0              Normal
  02/26/2026 01 AM PST            3.43            105         0              Normal
  02/26/2026 02 AM PST            3.43            105         0              Normal
  02/26/2026 03 AM PST            3.45            110         +              Normal
  02/26/2026 04 AM PST            3.45            110         0              Normal
  02/26/2026 05 AM PST            3.44            108         -              Normal
  02/26/2026 06 AM PST            3.46            113         +              Normal
  02/26/2026 07 AM PST            3.45            110         -              Normal
  02/26/2026 08 AM PST            3.45            110         0              Normal
  02/26/2026 09 AM PST            3.43            105         -              Normal
  02/26/2026 10 AM PST            3.41            101         -              Normal
  02/26/2026 11 AM PST            3.41            101         0              Normal
  02/26/2026 12 PM PST            3.41            101         0              Normal
  02/26/2026 01 PM PST            3.41            101         0              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  02/26/2026 02 PM PST            3.40             98                        Normal
  02/26/2026 03 PM PST            3.39             96         -              Normal
  02/26/2026 04 PM PST            3.39             96         0              Normal
  02/26/2026 05 PM PST            3.38             94         -              Normal
  02/26/2026 06 PM PST            3.38             94         0              Normal
  02/26/2026 07 PM PST            3.38             94         0              Normal
  02/26/2026 08 PM PST            3.37             92         -              Normal
  02/26/2026 09 PM PST            3.37             92         0              Normal
  02/26/2026 10 PM PST            3.37             92         0              Normal
  02/26/2026 11 PM PST            3.36             90         -              Normal
  02/27/2026 12 AM PST            3.36             90         0              Normal
  02/27/2026 01 AM PST            3.36             90         0              Normal
  02/27/2026 02 AM PST            3.35             87         -              Normal
  02/27/2026 03 AM PST            3.35             87         0              Normal
  02/27/2026 04 AM PST            3.35             87         0              Normal
  02/27/2026 05 AM PST            3.35             87         0              Normal
  02/27/2026 06 AM PST            3.34             85         -              Normal
  02/27/2026 07 AM PST            3.34             85         0              Normal
  02/27/2026 08 AM PST            3.34             85         0              Normal
  02/27/2026 09 AM PST            3.34             85         0              Normal
  02/27/2026 10 AM PST            3.33             83         -              Normal
  02/27/2026 11 AM PST            3.33             83         0              Normal
  02/27/2026 12 PM PST            3.33             83         0              Normal
  02/27/2026 01 PM PST            3.33             83         0              Normal
  02/27/2026 02 PM PST            3.33             83         0              Normal
  02/27/2026 03 PM PST            3.32             81         -              Normal
  02/27/2026 04 PM PST            3.32             81         0              Normal
  02/27/2026 05 PM PST            3.32             81         0              Normal
  02/27/2026 06 PM PST            3.32             81         0              Normal
  02/27/2026 07 PM PST            3.32             81         0              Normal
  02/27/2026 08 PM PST            3.31             79         -              Normal
  02/27/2026 09 PM PST            3.31             79         0              Normal
  02/27/2026 10 PM PST            3.31             79         0              Normal
  02/27/2026 11 PM PST            3.31             79         0              Normal
  02/28/2026 12 AM PST            3.31             79         0              Normal
  02/28/2026 01 AM PST            3.31             79         0              Normal
  02/28/2026 02 AM PST            3.31             79         0              Normal
  02/28/2026 03 AM PST            3.30             77         -              Normal
  02/28/2026 04 AM PST            3.30             77         0              Normal
  02/28/2026 05 AM PST            3.30             77         0              Normal
  02/28/2026 06 AM PST            3.30             77         0              Normal
  02/28/2026 07 AM PST            3.30             77         0              Normal
  02/28/2026 08 AM PST            3.29             76         -              Normal
  02/28/2026 09 AM PST            3.29             76         0              Normal
  02/28/2026 10 AM PST            3.29             76         0              Normal
  02/28/2026 11 AM PST            3.29             76         0              Normal
  02/28/2026 12 PM PST            3.29             76         0              Normal
  02/28/2026 01 PM PST            3.29             76         0              Normal
  02/28/2026 02 PM PST            3.29             76         0              Normal
  02/28/2026 03 PM PST            3.28             74         -              Normal
  02/28/2026 04 PM PST            3.28             74         0              Normal
  02/28/2026 05 PM PST            3.28             74         0              Normal
  02/28/2026 06 PM PST            3.28             74         0              Normal
  02/28/2026 07 PM PST            3.28             74         0              Normal
  02/28/2026 08 PM PST            3.28             74         0              Normal
  02/28/2026 09 PM PST            3.27             72         -              Normal
  02/28/2026 10 PM PST            3.27             72         0              Normal
  02/28/2026 11 PM PST            3.27             72         0              Normal
  03/01/2026 12 AM PST            3.27             72         0              Normal
  03/01/2026 01 AM PST            3.27             72         0              Normal
  03/01/2026 02 AM PST            3.27             72         0              Normal
  03/01/2026 03 AM PST            3.27             72         0              Normal
  03/01/2026 04 AM PST            3.26             70         -              Normal
  03/01/2026 05 AM PST            3.26             70         0              Normal
  03/01/2026 06 AM PST            3.26             70         0              Normal
  03/01/2026 07 AM PST            3.26             70         0              Normal
  03/01/2026 08 AM PST            3.26             70         0              Normal
  03/01/2026 09 AM PST            3.26             70         0              Normal
  03/01/2026 10 AM PST            3.26             70         0              Normal
  03/01/2026 11 AM PST            3.25             68         -              Normal
  03/01/2026 12 PM PST            3.25             68         0              Normal
  03/01/2026 01 PM PST            3.25             68         0              Normal
  03/01/2026 02 PM PST            3.25             68         0              Normal
  03/01/2026 03 PM PST            3.25             68         0              Normal
  03/01/2026 04 PM PST            3.25             68         0              Normal
  03/01/2026 05 PM PST            3.25             68         0              Normal
  03/01/2026 06 PM PST            3.25             68         0              Normal
  03/01/2026 07 PM PST            3.25             68         0              Normal
  03/01/2026 08 PM PST            3.24             66         -              Normal
  03/01/2026 09 PM PST            3.24             66         0              Normal
  03/01/2026 10 PM PST            3.24             66         0              Normal
  03/01/2026 11 PM PST            3.24             66         0              Normal
  03/02/2026 12 AM PST            3.24             66         0              Normal
  03/02/2026 01 AM PST            3.24             66         0              Normal
  03/02/2026 02 AM PST            3.24             66         0              Normal
  03/02/2026 03 AM PST            3.24             66         0              Normal
  03/02/2026 04 AM PST            3.23             65         -              Normal
  03/02/2026 05 AM PST            3.23             65         0              Normal
  03/02/2026 06 AM PST            3.23             65         0              Normal
  03/02/2026 07 AM PST            3.23             65         0              Normal
  03/02/2026 08 AM PST            3.23             65         0              Normal
  03/02/2026 09 AM PST            3.23             65         0              Normal
  03/02/2026 10 AM PST            3.23             65         0              Normal
  03/02/2026 11 AM PST            3.23             65         0              Normal
  03/02/2026 12 PM PST            3.23             65         0              Normal
  03/02/2026 01 PM PST            3.23             65         0              Normal
  03/02/2026 02 PM PST            3.23             65         0              Normal
  03/02/2026 03 PM PST            3.22             63         -              Normal
  03/02/2026 04 PM PST            3.22             63         0              Normal
  03/02/2026 05 PM PST            3.22             63         0              Normal
  03/02/2026 06 PM PST            3.22             63         0              Normal
  03/02/2026 07 PM PST            3.22             63         0              Normal
  03/02/2026 08 PM PST            3.22             63         0              Normal
  03/02/2026 09 PM PST            3.22             63         0              Normal
  03/02/2026 10 PM PST            3.22             63         0              Normal
  03/02/2026 11 PM PST            3.22             63         0              Normal
  03/03/2026 12 AM PST            3.21             61         -              Normal
  03/03/2026 01 AM PST            3.21             61         0              Normal
  03/03/2026 02 AM PST            3.21             61         0              Normal
  03/03/2026 03 AM PST            3.21             61         0              Normal
  03/03/2026 04 AM PST            3.21             61         0              Normal
#
# NOTE 1: Stages are rounded to the nearest hundredth (.01) of a foot.
# NOTE 2: Flows are rounded to the nearest (1) cfs.
# NOTE 3: Trends are determined using hourly change in unrounded stage and flow.
# NOTE 4: Maximum Values are determined using unrounded stage and flow.